sd: remove 'ssd' driver support
[unleashed/tickless.git] / arch / x86 / include / sys / pcb.h
blobdefd116ebad8e78c1cb507948a6812d542050abb
1 /*
2 * CDDL HEADER START
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
19 * CDDL HEADER END
23 * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
26 #ifndef _SYS_PCB_H
27 #define _SYS_PCB_H
29 #include <sys/regset.h>
30 #include <sys/segments.h>
31 #ifndef _ASM
32 #include <sys/fp.h> /* kfpu_t */
33 #endif
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
39 #ifndef _ASM
40 typedef struct fpu_ctx {
41 kfpu_t fpu_regs; /* kernel save area for FPU */
42 uint64_t fpu_xsave_mask; /* xsave mask for FPU/SSE/AVX */
43 #if defined(__i386)
44 uint64_t fpu_padding; /* fix 32bit libmicro regression */
45 #endif
46 uint_t fpu_flags; /* FPU state flags */
47 } fpu_ctx_t;
49 typedef struct pcb {
50 fpu_ctx_t pcb_fpu; /* fpu state */
51 uint_t pcb_flags; /* state flags; cleared on fork */
52 greg_t pcb_drstat; /* status debug register (%dr6) */
53 unsigned char pcb_instr; /* /proc: instruction at stop */
54 #if defined(__amd64)
55 unsigned char pcb_rupdate; /* new register values in pcb -> regs */
56 uintptr_t pcb_fsbase;
57 uintptr_t pcb_gsbase;
58 selector_t pcb_ds;
59 selector_t pcb_es;
60 selector_t pcb_fs;
61 selector_t pcb_gs;
62 #endif /* __amd64 */
63 user_desc_t pcb_fsdesc; /* private per-lwp %fs descriptors */
64 user_desc_t pcb_gsdesc; /* private per-lwp %gs descriptors */
65 } pcb_t;
67 #endif /* ! _ASM */
69 /* pcb_flags */
70 #define DEBUG_PENDING 0x02 /* single-step of lcall for a sys call */
71 #define PRSTOP_CALLED 0x04 /* prstop() has been called for this lwp */
72 #define INSTR_VALID 0x08 /* value in pcb_instr is valid (/proc) */
73 #define NORMAL_STEP 0x10 /* normal debugger-requested single-step */
74 #define WATCH_STEP 0x20 /* single-stepping in watchpoint emulation */
75 #define CPC_OVERFLOW 0x40 /* performance counters overflowed */
76 #define REQUEST_STEP 0x100 /* request pending to single-step this lwp */
77 #define REQUEST_NOSTEP 0x200 /* request pending to disable single-step */
78 #define ASYNC_HWERR 0x400 /* hardware error has corrupted context */
80 /* fpu_flags */
81 #define FPU_EN 0x1 /* flag signifying fpu in use */
82 #define FPU_VALID 0x2 /* fpu_regs has valid fpu state */
83 #define FPU_MODIFIED 0x4 /* fpu_regs is modified (/proc) */
85 #define FPU_INVALID 0x0 /* fpu context is not in use */
87 /* fpu_flags */
89 #ifdef __cplusplus
91 #endif
93 #endif /* _SYS_PCB_H */